摘要
提出了采用乙腈作为溶剂漩涡混合超声提取-气相色谱外标法定量测定曲克芦丁中甲醇的方法。结果显示,提取方式选择漩涡混合提取5分钟加超声提取20分钟,提取率最高,甲醇浓度在0.05～2mg/ml呈线性关系,甲醇的定量限为0.0042mg/ml。在2个标准加入水平下进行回收率和精密度实验,加标回收率均处于98.1%～101.2%之间,相对标准偏差(n=6)小于1.95%。
make the Vortex hybrid ultrasonic acetonitrile as the solvent extraction, by gas chromatography with external standard method for quantitative determination of methanol in troxerutin Results display, Vortex extraction method for mfxture extraction of ultrasonic extraction of 5 minutes plus 20 minutes, highest extraction rate, Methanol concentration is linear relationship in 0. 05-2 mg/ml, quantitative limit of methanol is 0.0042 mg/ml. Joining the level of recovery in 2 standard and precision experiments, and recovery rates are between 98.1%-101.2%, the relative standard deviation （n=6） is less than 1.95%.
出处
《科技创新导报》
2012年第25期13-14,17,共3页
Science and Technology Innovation Herald
关键词
曲克芦丁
甲醇
超声提取
气相色谱法
troxerutin i Methanol i Ultrasonic extraction i gas chromatography
